//check if image-maps will work.
 	var mo=false;
	browserName = navigator.appName;
	browserVer = parseInt(navigator.appVersion.substring(0,1));
	if ((browserName == "Netscape") && (browserVer >= 3))
	{
		mo = true
	}
	if ((browserName == "Microsoft Internet Explorer") && (browserVer >= 4))
	{
		mo=true
	}
 
 // preload images.
 	if(mo)
 	{
	 	a1 = new Image();
		a1.src = "images/home.gif";
		a2 = new Image();
		a2.src = "images/home1.gif";
		a3 = new Image();
		a3.src = "images/features.gif";
		a4 = new Image();
		a4.src = "images/features1.gif";
		a7 = new Image();
		a7.src = "images/download.gif";
		a8 = new Image();
		a8.src = "images/download1.gif";
		a9 = new Image();
		a9.src = "images/buy_now.gif";
		a10 = new Image();
		a10.src = "images/buy_now1.gif";
		a11 = new Image();
		a11.src = "images/contact.gif";
		a12 = new Image();
		a12.src = "images/contact1.gif";
	}
	
	function popup(i,x,y)
	{
		ImgWin= open(i, "", "width="+x+", height="+y+", resizable=yes, status=no, toolbar=no, menubar=no, scrollbars=no");
		ImgWin.focus();
	}